[Mesa-dev] [PATCH 3/9] anv: Implemented the vkGetPhysicalDeviceMultisamplePropertiesEXT

[Eleni Maria Stea]

Implemented the vkGetPhysicalDeviceMultisamplePropertiesEXT according to
the Vulkan Specification section [36.2. Additional Multisampling
Capabilities].
---
 src/intel/Makefile.sources              |  1 +
 src/intel/vulkan/anv_sample_locations.c | 60 +++++++++++++++++++++++++
 src/intel/vulkan/meson.build            |  1 +
 3 files changed, 62 insertions(+)
 create mode 100644 src/intel/vulkan/anv_sample_locations.c

diff --git a/src/intel/Makefile.sources b/src/intel/Makefile.sources
index a5c8828a6b6..a0873c7ccc2 100644
--- a/src/intel/Makefile.sources
+++ b/src/intel/Makefile.sources
@@ -251,6 +251,7 @@ VULKAN_FILES := \
 	vulkan/anv_pipeline_cache.c \
 	vulkan/anv_private.h \
 	vulkan/anv_queue.c \
+	vulkan/anv_sample_locations.c \
 	vulkan/anv_util.c \
 	vulkan/anv_wsi.c \
 	vulkan/vk_format_info.h
diff --git a/src/intel/vulkan/anv_sample_locations.c b/src/intel/vulkan/anv_sample_locations.c
new file mode 100644
index 00000000000..1ebf280e05b
--- /dev/null
+++ b/src/intel/vulkan/anv_sample_locations.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright © 2019 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "anv_private.h"
+
+void
+anv_GetPhysicalDeviceMultisamplePropertiesEXT(VkPhysicalDevice physicalDevice,
+                                              VkSampleCountFlagBits samples,
+                                              VkMultisamplePropertiesEXT
+                                              *pMultisampleProperties)
+{
+   ANV_FROM_HANDLE(anv_physical_device, physical_device, physicalDevice);
+   const struct gen_device_info *devinfo = &physical_device->info;
+
+   VkExtent2D grid_size;
+   switch (samples) {
+   case VK_SAMPLE_COUNT_2_BIT:
+   case VK_SAMPLE_COUNT_4_BIT:
+   case VK_SAMPLE_COUNT_8_BIT:
+      grid_size.width = SAMPLE_LOC_GRID_W;
+      grid_size.height = SAMPLE_LOC_GRID_H;
+      break;
+
+   case VK_SAMPLE_COUNT_16_BIT:
+      if (devinfo->gen >= 9) {
+         grid_size.width = SAMPLE_LOC_GRID_W;
+         grid_size.height = SAMPLE_LOC_GRID_H;
+         break;
+      }
+   default:
+      grid_size.width = grid_size.height = 0;
+      break;
+   };
+
+   *pMultisampleProperties = (VkMultisamplePropertiesEXT) {
+      .sType = VK_STRUCTURE_TYPE_MULTISAMPLE_PROPERTIES_EXT,
+      .pNext = NULL,
+      .maxSampleLocationGridSize = grid_size
+   };
+}
diff --git a/src/intel/vulkan/meson.build b/src/intel/vulkan/meson.build
index 7fa43a6ad79..3f78757c774 100644
--- a/src/intel/vulkan/meson.build
+++ b/src/intel/vulkan/meson.build
@@ -135,6 +135,7 @@ libanv_files = files(
   'anv_pipeline_cache.c',
   'anv_private.h',
   'anv_queue.c',
+  'anv_sample_locations.c',
   'anv_util.c',
   'anv_wsi.c',
   'vk_format_info.h',
-- 
2.20.1